#14105: all_graph_colorings should have an option to use integer colors.
------------------------------+---------------------------------------------
   Reporter:  rowland         |             Owner:  jason, ncohen, rlm
       Type:  enhancement     |            Status:  new               
   Priority:  minor           |         Milestone:  sage-5.8          
  Component:  graph theory    |          Keywords:                    
Work issues:                  |   Report Upstream:  N/A               
  Reviewers:  chrisjamesberg  |           Authors:  ahmorales, rowland
  Merged in:                  |      Dependencies:                    
   Stopgaps:                  |  
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 This is ugly:

 sage: from sage.graphs.graph_coloring import all_graph_colorings
 sage: g = Graph([[0, 1], [1, 2]])
 sage: list(all_graph_colorings(g, 3))
 [{'#00ff00': [1], '#ff0000': [0, 2]}, {'#00ff00': [1], '#ff0000': [0],
 '#0000ff': [2]}, {'#0000ff': [1], '#ff0000': [0, 2]}, {'#0000ff': [1],
 '#ff0000': [0], '#00ff00': [2]}, {'#ff0000': [1], '#00ff00': [0, 2]},
 {'#ff0000': [1], '#00ff00': [0], '#0000ff': [2]}, {'#0000ff': [1],
 '#ff0000': [2], '#00ff00': [0]}, {'#0000ff': [1], '#00ff00': [0, 2]},
 {'#ff0000': [1], '#0000ff': [0], '#00ff00': [2]}, {'#ff0000': [1],
 '#0000ff': [0, 2]}, {'#00ff00': [1], '#ff0000': [2], '#0000ff': [0]},
 {'#00ff00': [1], '#0000ff': [0, 2]}]

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14105>
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